Power input panel PHARPS32200000
This power system will provide the corresponding DC operating power to the corresponding modules of the field control unit HCU of the distributed control system Symphony, as well as local equipment such as transmitters required on the site.
The most prominent difference between the two power systems MPSIII and MPSII is that the MPSIII power system uses standard power modules and can choose different power modules based on the load and level of power consumption to meet the needs of different user sites.
MPSIII power system main features
• Adjustable power factor
The AC input power supply has a flexible, adjustable power factor. It is a maximum of 0.95;
• Online power supply replacement
When needed, the power block can be replaced during system operation;
• Monitoring characteristics
The monitor of the power system can monitor parameters such as fan and cabinet temperature;
• Can receive a variety of input power
The power system can be directly connected to external power sources such as 120VAC, 240VAC, 125VDC, and does not need to be set by switches or jumpers;
Structure of MPSIII
The basic structure of general MPSIII includes: power input panel, power installation bracket, block power supply, fan assembly and DC bus monitoring component, etc., and the power input panel, power block and other components will be selected according to needs, which can drive users The power structure of the device.
Power Entry Panel (PEP)
The main function of the power input panel PEP is to introduce external power into the system. It includes 12 different models to choose from. The basic installation structure of PEP is the same, but the power supply mounting frame and external input power it supports will be selected according to needs, which also constitutes different models of PEP.
The power input panel includes:
• 2 factory power supply connection terminals (allows the user to connect the required external power supply with 16 to 4 mm2 wires)
• Two 25A on / off switches or circuit breakers
• 2 selectable inrush current suppressors
• 4 block power cable connectors
• Mounting frame ground bolt
• Ground connection accessories
Fan Assembly
The fan assembly of the power supply system provides cooling for the system module operation of the HCU. The operating voltage of each fan is 24VDC. Its power is connected to the fan through the power bus bar and cable.
The system includes:
• 3 cooling fans
• Optional enclosure temperature monitoring
• Status output connection
• Status LEDs display
• Door fan power connection
• Status connection terminal
The power supply bracket provides the following components:
• 2 redundant block power installation slots
• cooling fan
• Power output terminal
• DC bus monitoring component
• Status output terminal
Various terminals provided by this mounting bracket are connected to the power bus bar of the cabinet through corresponding wires to obtain the power distribution characteristics. + 48VDC, + 125VDC power supply is a power supply specially used for field equipment. The block power supply can be replaced online when a problem occurs. Of course, before removing the power supply, you must pass the switch on the PEP to turn off the power supply to ensure safety.
If the system uses more power levels, this requires the use of 2 power supply mounting brackets and 4 block power supplies. For a typical dual-mount application, field power should be installed in the upper part and system power should be installed in the lower part.
The block-shaped power supply can be inserted into the power supply mounting bracket and fixed with bolts. The power supply is available in 15 different models. This power supply can provide system operation power such as: + 5VDC, + 15VDC, 15VDC, and also provide on-site power such as + 24VDC, + 48VDC, + 125VDC. The system has a shared circuit, which can be used by redundant power supplies to bear the output current, and the effective power factor adjustment of the AC input power can be up to 0.95. The block power supply monitors its output and internal temperature and displays the current status of the power supply via LEDs.
Each block power supply is connected to the PEP by a cable wire.
A typical MPSIII system can be divided into 2 various structures namely:
Single power supply mounting system structure, which includes:
• 1 power input panel
• 1 power supply mounting bracket
• 1 fan assembly
• 2 block power supplies
• 1 bus monitoring component
Dual power supply mounting system structure, which includes:
• 1 power input panel
• 2 power supply mounting brackets
• 1 fan assembly
• 4 block power supplies
• 1 bus monitoring component
PHARPS32200000 can also provide on-site power such as + 24VDC, + 48VDC, + 125VDC. The system has a shared circuit, which can be used by redundant power supplies to bear the output current, and the effective power factor adjustment of the AC input power can be up to 0.95. The block power supply monitors its output and internal temperature and displays the current status of the power supply via LEDs.
